Debra J. Giesen, APRN
NPI 1518549229ActiveIndividual· Nurse Practitioner, Family· Waterbury, CT
Nurse Practitioner, Family (APRN) with Trinity Health of New England Provider Network Organization Inc, practicing in Waterbury, Connecticut. Their prescriptions cost Medicare Part D more than their services did: $390,542 for 3,643 claims, against $23,386 paid for services in 2024. Lilly USA, LLC was the largest of 18 companies reporting payments in 2025, $1,189 in all, mostly food and beverage. Lists Saint Mary's Hospital as a hospital affiliation.
Overview
| NPI | 1518549229 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | APRN |
| Sole proprietor | No |
| NPI issued | Apr 22, 2021 |
| Last updated in NPPES | Aug 23, 2022 |
| Certified by provider | Aug 23, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner, Family Primary | 363LF0000X | 9639 | CT |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Nurse Practitioner (CT) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 172 |
|---|---|
| Services billed | 360 across 27 procedure codes |
| Paid by Medicare | $23,386 |
Part D prescriptions in 2024
| Prescriptions (claims) | 3,643 · 6,801 30-day fills |
|---|---|
| Patients | 511 |
| Total drug cost | $390,542 |
| Generic share | 83% of claims |
Education and affiliations
| Graduation year | 2011 |
|---|---|
| Medicare specialty | Nurse Practitioner |
| Telehealth | Offers telehealth |
Medical group
- Trinity Health of New England Provider Network Organization IncHartford, CT · 653 clinicians
Hospital affiliation
- Saint Mary's HospitalWaterbury, CT
Other facilities
- Elara CaringHome health agency · Rocky Hill, CT
Industry payments (Open Payments)
- 2025$1,189 · 52 payments from 18 companies
- 2024$1,257 · 66 payments from 15 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Lilly USA, LLC | $233.91 | 10 |
| Abbvie Inc. | $147.96 | 7 |
| Novo Nordisk Inc | $146.33 | 7 |
| Astrazeneca Pharmaceuticals LP | $113.45 | 6 |
| Otsuka America Pharmaceutical, Inc. | $108.40 | 5 |
What the 2025 payments were for
- Food and Beverage$1,173 · 51 payments
- Education$15.99 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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